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	hartrees
Energy at 0K	-475.705881
Energy at 298.15K	-475.709908
HF Energy	-474.670910
Nuclear repulsion energy	265.812936

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3137	3010	0.00
2	A_g	1507	1446	0.00
3	A_g	1190	1142	0.00
4	A_g	1129	1084	0.00
5	A_g	634	608	0.00
6	A_g	367	352	0.00
7	A_u	1381	1325	75.41
8	A_u	1203	1154	359.23
9	A_u	204	196	2.88
10	A_u	84	81	2.22
11	B_g	1408	1351	0.00
12	B_g	1172	1124	0.00
13	B_g	490	470	0.00
14	B_u	3146	3018	60.73
15	B_u	1331	1277	41.64
16	B_u	1159	1112	230.08
17	B_u	550	528	10.71
18	B_u	410	393	50.85

Atom	x (Å)	y (Å)	z (Å)
C1	-0.245	0.721	0.000
C2	0.245	-0.721	0.000
H3	-1.347	0.777	0.000
H4	1.347	-0.777	0.000
F5	0.245	1.344	1.101
F6	0.245	1.344	-1.101
F7	-0.245	-1.344	1.101
F8	-0.245	-1.344	-1.101

	C1	C2	H3	H4	F5	F6	F7	F8
C1		1.5235	1.1030	2.1855	1.3568	1.3568	2.3407	2.3407
C2	1.5235		2.1855	1.1030	2.3407	2.3407	1.3568	1.3568
H3	1.1030	2.1855		3.1089	2.0169	2.0169	2.6314	2.6314
H4	2.1855	1.1030	3.1089		2.6314	2.6314	2.0169	2.0169
F5	1.3568	2.3407	2.0169	2.6314		2.2029	2.7324	3.5098
F6	1.3568	2.3407	2.0169	2.6314	2.2029		3.5098	2.7324
F7	2.3407	1.3568	2.6314	2.0169	2.7324	3.5098		2.2029
F8	2.3407	1.3568	2.6314	2.0169	3.5098	2.7324	2.2029

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H4	111.627	C1	C2	F7	108.576
C1	C2	F8	108.576	C2	C1	H3	111.627
C2	C1	F5	108.576	C2	C1	F6	108.576
H3	C1	F5	109.727	H3	C1	F6	109.727
H4	C2	F7	109.727	H4	C2	F8	109.727
F5	C1	F6	108.543	F7	C2	F8	108.543

All results from a given calculation for CHF₂CHF₂ (1,1,2,2-tetrafluoroethane)

using model chemistry: QCISD/cc-pVDZ

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CHF2CHF2 (1,1,2,2-tetrafluoroethane)

using model chemistry: QCISD/cc-pVDZ

States and conformations

All results from a given calculation for CHF₂CHF₂ (1,1,2,2-tetrafluoroethane)